Simple' nervous systems :  an international symposium / 
General editors, P. N. R. Usherwood and D. R. Newth. 
 - London :  Edward Arnold,  1975. 
 - 490 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0713124644 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Neurophysiology--Congresses.